Which to use
“castaña” is a noun and “castañas” is an adjective - they look or sound alike but fill different roles in a sentence.
- #29,530
- “castaña” frequency rank
- #32,547
- “castañas” frequency rank
- 62077
- confusion score
Side-by-Side Comparison
| Feature | castaña | castañas |
|---|---|---|
| Definition | Fruto del castaño (Castanea spp.), una núcula de tres a cuatro cm de diámetro, recubierta de una cúpula espinosa. Son muy sabrosas y nutritivas, consumiéndose asadas, hervidas, confitadas o como harina. | Forma del femenino plural de castaño. |
Where the eye mixes castaña and castañas
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. castaña runs 7 letters (CVCCVCV) against castañas's 8 (CVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between castaña and castañas
These two trip readers on the page rather than in the ear: castaña is [kasˈt̪aɲa] while castañas is [kasˈt̪aɲas]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “castaña” sits inside “castañas”, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 62077, derived from the frequency rank of both members and their visual similarity.
castaña is recorded at frequency rank #29,530, classified as anoun, pronounced [kasˈt̪aɲa]. castañas is at rank #32,547, tagged as anadj, pronounced [kasˈt̪aɲas].
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 62077, this pair ranks #53,222 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of castaña vs castañas
Shared letters: acstñ. Private to "castaña": -. Private to "castañas": -.
"castaña" · 7 letters · shape CVCCVCV · "castañas" · 8 letters · shape CVCCVCVC
Frequently Asked Questions
Is swapping "castaña" for "castañas" ever safe?
Which is more common, "castaña" or "castañas"?
Useful next steps
Eye-level mix-up between "castaña" and "castañas" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "castaña" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "castañas" - compare definitions side by side with the headword page. Word entry
- This pair ranks #53,222 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "castaña" and "castañas" also get mixed up with nearby pairs, the highest-scored neighbour is "casará vs castaña". Nearby pair
Confusion rank #53,222 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.